EP 2368320 B1 20120919 - LINEAR AND POLAR DUAL MODE TRANSMITTER CIRCUIT
Title (en)
LINEAR AND POLAR DUAL MODE TRANSMITTER CIRCUIT
Title (de)
LINEAR- UND POLAR-ZWEIFACHMODUS-SENDERSCHALTUNG
Title (fr)
CIRCUIT D'ÉMETTEUR À DOUBLE MODE LINÉAIRE ET POLAIRE
Publication
Application
Priority
- US 2009065962 W 20091125
- US 27791308 A 20081125
Abstract (en)
[origin: US2009190692A1] Method and apparatus for configuring a transmitter circuit to support linear or polar mode. In the linear mode, a baseband signal is specified by adjusting the amplitudes of in-phase (I) and quadrature (Q) signals, while in the polar mode, the information signal is specified by adjusting the phase of a local oscillator (LO) signal and the amplitude of either an I or a Q signal. In an exemplary embodiment, two mixers are provided for both linear and polar mode, with a set of switches selecting the appropriate input signals provided to one of the mixers based on whether the device is operating in linear or polar mode. In an exemplary embodiment, each mixer may be implemented using a scalable architecture that efficiently adjusts mixer size based on required transmit power.
IPC 8 full level
H03C 3/40 (2006.01); H03C 5/00 (2006.01); H03D 7/14 (2006.01); H03D 7/16 (2006.01); H03G 3/30 (2006.01); H04L 27/34 (2006.01); H04L 27/36 (2006.01); H04L 27/38 (2006.01)
CPC (source: EP KR US)
H03C 3/40 (2013.01 - EP US); H03C 5/00 (2013.01 - EP US); H03C 7/00 (2013.01 - KR); H03D 7/1441 (2013.01 - EP US); H03D 7/1458 (2013.01 - EP US); H03D 7/1483 (2013.01 - EP US); H03D 7/1491 (2013.01 - EP US); H03D 7/165 (2013.01 - EP US); H03D 7/166 (2013.01 - EP US); H03G 3/3042 (2013.01 - EP US); H04L 27/00 (2013.01 - KR); H04L 27/34 (2013.01 - EP US); H04L 27/36 (2013.01 - EP US); H04L 27/361 (2013.01 - EP US); H04L 27/362 (2013.01 - EP US); H04L 27/38 (2013.01 - EP US); H04L 27/389 (2013.01 - EP US); H03D 2200/0023 (2013.01 - EP US); H03D 2200/0084 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
US 2009190692 A1 20090730; US 8599938 B2 20131203; CN 102217191 A 20111012; CN 102217191 B 20141119; EP 2368320 A2 20110928; EP 2368320 B1 20120919; ES 2393256 T3 20121219; JP 2012510239 A 20120426; JP 5242806 B2 20130724; KR 101267419 B1 20130530; KR 20110089881 A 20110809; TW 201032463 A 20100901; WO 2010068504 A2 20100617; WO 2010068504 A3 20100819
DOCDB simple family (application)
US 27791308 A 20081125; CN 200980145975 A 20091125; EP 09760442 A 20091125; ES 09760442 T 20091125; JP 2011538694 A 20091125; KR 20117014789 A 20091125; TW 98140249 A 20091125; US 2009065962 W 20091125